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City of San Mateo Municipal Code.

7.39.210 STORMWATER TREATMENT FACILITIES.

(a) The Director may require that permanent stormwater treatment facilities be designed into projects. Stormwater treatment facilities shall be designed to minimize the need for maintenance. All designs shall be approved by the Director of Public Works and must be in accordance with all applicable City standards or requirements.

(b) The treatment facility must control the discharge of pollutants and/or peak runoff rates to the performance standards designated by the City.